Hi - pretty happy with the Simple Cub as a build but putting the motor and battery in and discovered that in standard position for the motor with the battery full forward the tail won't even leave the bench with a CG test. What's going on here? Is it because the foam board I use is heavier than the FT stuff? My marked CG is 45mm from the leading edge per the data sheet. At this rate I would have to have the motor sitting 10cm forward to get any kind of balance. Didn't expect it to be that far out. Using a 1500mah.